089f4dfad8
The modern IFileOpenDialog becomes the primary win32 tier: a koffi-driven COM conversation on a worker_threads worker (the modal Show never blocks the host event loop), per-monitor-v2 DPI via SetThreadDpiAwarenessContext, and abort service by re-posting WM_CLOSE to the dialog thread's windows, with terminate+unref as the last resort (Node cannot interrupt a thread blocked in native code, and such a worker must never hold the process open). The PowerShell chain stays as the fallback tier with its trigger widened from ENOENT to any pwsh failure, closing the review-flagged PowerShell 6 regression (no WinForms: exit 1, not ENOENT, so 5.1 never ran). Layering keeps per-file coverage honest on every host: pure sequencing and the driver test against fakes anywhere; the bindings run against a mocked koffi COM world (the session-persistence-jsonl technique); POSIX hosts drive the real spawn plumbing to its koffi-load rejection; win32 hosts run a real open-and-abort-close smoke. The smoke joins processBoundTests: a worker blocked in a native modal wedges the threads pool's teardown, while a fork contains it. The worker bundles as its own CJS tsdown entry (workflow-workerthread's pattern; no TLA), and the host module is imported statically so the node-half bundle stays chunk-free. Built-plane and real-COM behavior verified on native Windows: standalone probes for the source worker, the built CJS worker, and the driver's abort path all open and close the real dialog. Agent Notes: new implemented/feature/2026-08-02-win32-in-process-folder-dialog (bilingual) owns the decision; the DPI note is re-scoped to the fallback tier it now describes and its AutoUpgradeEnabled attribution corrected (.NET Core 3.0 rewrote FolderBrowserDialog; the opt-out arrived in .NET 6).
221 lines
12 KiB
TypeScript
221 lines
12 KiB
TypeScript
type ExecFileCallback = (
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error: (Error & { code?: string | number }) | null,
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stdout: string,
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stderr: string,
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) => void
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type ExecFileMock = (
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command: string,
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args: readonly string[],
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options: { encoding: string; signal: AbortSignal; windowsHide: boolean },
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callback: ExecFileCallback,
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) => void
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const { execFileMock } = vi.hoisted(() => ({ execFileMock: vi.fn<ExecFileMock>() }))
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vi.mock('node:child_process', () => ({ execFile: execFileMock }))
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import { describe, expect, it, vi } from 'vitest'
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import { pickNativeDirectory, type DirectoryPickerRunner } from '../src/native-picker.ts'
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function failure(code: string | number, stderr = ''): Error {
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return Object.assign(new Error(`command failed: ${String(code)}`), { code, stderr })
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}
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const signal = () => new AbortController().signal
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/** The PowerShell chain is reachable only when the in-process dialog fails. */
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const noDialog = async (): Promise<string | null> => { throw new Error('dialog unavailable') }
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describe('native directory picker', () => {
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it('uses the macOS folder chooser and maps user cancellation to null', async () => {
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const run = vi.fn<DirectoryPickerRunner>(async () => ({ stdout: '/Users/test/project/\n', stderr: '' }))
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await expect(pickNativeDirectory(signal(), { platform: 'darwin', run })).resolves.toBe('/Users/test/project/')
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expect(run).toHaveBeenCalledWith('osascript', expect.arrayContaining(['POSIX path of selectedFolder']), expect.any(AbortSignal))
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run.mockRejectedValueOnce(failure(1, 'execution error: User canceled. (-128)'))
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await expect(pickNativeDirectory(signal(), { platform: 'darwin', run })).resolves.toBeNull()
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run.mockRejectedValueOnce(failure(2, 'permission denied'))
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await expect(pickNativeDirectory(signal(), { platform: 'darwin', run })).rejects.toThrow('command failed')
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})
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it.each([
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['a primitive error', 'failed'],
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['an invalid code type', { code: true }],
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['a missing stderr property', { code: 1 }],
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['a non-string stderr property', { code: 1, stderr: 42 }],
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])('does not mistake %s for macOS cancellation', async (_label, reason) => {
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const run = vi.fn<DirectoryPickerRunner>(async () => { throw reason })
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await expect(pickNativeDirectory(signal(), { platform: 'darwin', run })).rejects.toBe(reason)
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})
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it('prefers the in-process Win32 dialog and never spawns PowerShell when it answers', async () => {
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const run = vi.fn<DirectoryPickerRunner>()
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const pickWin32Dialog = vi.fn(async (): Promise<string | null> => 'C:\\work\\selected')
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run, pickWin32Dialog })).resolves.toBe('C:\\work\\selected')
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pickWin32Dialog.mockResolvedValueOnce(null)
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run, pickWin32Dialog })).resolves.toBeNull()
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expect(run).not.toHaveBeenCalled()
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})
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it('falls back to pwsh when the dialog is unavailable and maps empty output to cancellation', async () => {
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const run = vi.fn<DirectoryPickerRunner>(async () => ({ stdout: 'C:\\work\\project\r\n', stderr: '' }))
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run, pickWin32Dialog: noDialog })).resolves.toBe('C:\\work\\project')
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expect(run).toHaveBeenCalledWith(
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'pwsh.exe',
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expect.arrayContaining(['-NoProfile', '-STA', '-Command']),
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expect.any(AbortSignal),
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)
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const script = run.mock.calls[0]?.[1].at(-1)
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expect(script).toContain("$ErrorActionPreference = 'Stop'")
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expect(script).toContain('SetProcessDPIAware')
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// Description renders as a bottom strip (modern) / unthemed box (classic); never set it.
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expect(script).not.toContain('Description')
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run.mockResolvedValueOnce({ stdout: '', stderr: '' })
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run, pickWin32Dialog: noDialog })).resolves.toBeNull()
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})
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it('falls back to Windows PowerShell 5.1 whenever pwsh cannot deliver the dialog', async () => {
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const run = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure('ENOENT'))
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.mockResolvedValueOnce({ stdout: 'C:\\work\\fallback\r\n', stderr: '' })
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run, pickWin32Dialog: noDialog })).resolves.toBe('C:\\work\\fallback')
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expect(run.mock.calls.map(call => call[0])).toEqual(['pwsh.exe', 'powershell.exe'])
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// Both runtimes execute the identical script, so DPI awareness holds either way.
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expect(run.mock.calls[0]?.[1].at(-1)).toBe(run.mock.calls[1]?.[1].at(-1))
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// A resolvable pwsh that cannot deliver the dialog (PowerShell 6: no
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// WinForms, Add-Type exits 1 - not ENOENT) reaches 5.1 all the same.
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const pwsh6 = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure(1, "Cannot load assembly 'System.Windows.Forms'"))
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.mockResolvedValueOnce({ stdout: 'C:\\work\\legacy\r\n', stderr: '' })
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run: pwsh6, pickWin32Dialog: noDialog })).resolves.toBe('C:\\work\\legacy')
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expect(pwsh6.mock.calls.map(call => call[0])).toEqual(['pwsh.exe', 'powershell.exe'])
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const cancelled = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure('ENOENT'))
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.mockResolvedValueOnce({ stdout: '', stderr: '' })
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run: cancelled, pickWin32Dialog: noDialog })).resolves.toBeNull()
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const failed = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure('ENOENT'))
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.mockRejectedValueOnce(failure(2))
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await expect(pickNativeDirectory(signal(), { platform: 'win32', run: failed, pickWin32Dialog: noDialog })).rejects.toThrow('command failed')
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})
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it('wires the real Win32 dialog as the default tier', async () => {
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// A pre-aborted signal makes the DEFAULT dialog deterministic on every
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// host: pickWin32Directory throws before spawning any worker or window.
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const abort = new AbortController()
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abort.abort()
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const run = vi.fn<DirectoryPickerRunner>()
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await expect(pickNativeDirectory(abort.signal, { platform: 'win32', run }))
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.rejects.toThrow('native directory picker aborted')
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expect(run).not.toHaveBeenCalled()
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})
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it('does not fall back when the caller aborted the dialog or the pwsh spawn', async () => {
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const abort = new AbortController()
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abort.abort(new Error('closed'))
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const run = vi.fn<DirectoryPickerRunner>()
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await expect(pickNativeDirectory(abort.signal, { platform: 'win32', run, pickWin32Dialog: noDialog })).rejects.toThrow('dialog unavailable')
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expect(run).not.toHaveBeenCalled()
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const liveThenAborted = new AbortController()
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const abortingRun = vi.fn<DirectoryPickerRunner>(async () => {
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liveThenAborted.abort(new Error('closed'))
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throw failure('ENOENT')
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})
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await expect(pickNativeDirectory(liveThenAborted.signal, { platform: 'win32', run: abortingRun, pickWin32Dialog: noDialog }))
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.rejects.toThrow('command failed')
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expect(abortingRun).toHaveBeenCalledOnce()
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})
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it('runs the default command adapter without a shell and preserves command failures', async () => {
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execFileMock.mockImplementationOnce((_command, _args, _options, callback) => {
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callback(null, 'C:\\work\\default\r\n', '')
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})
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await expect(pickNativeDirectory(signal(), { platform: 'win32', pickWin32Dialog: noDialog })).resolves.toBe('C:\\work\\default')
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const [command, args, options] = execFileMock.mock.calls[0]!
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expect(command).toBe('pwsh.exe')
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expect(args).toEqual(expect.arrayContaining(['-NoProfile', '-STA', '-Command']))
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expect(options.encoding).toBe('utf8')
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expect(options.windowsHide).toBe(true)
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expect(options.signal).toBeInstanceOf(AbortSignal)
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// Both chain tiers fail: pwsh's code-7 failure now reaches 5.1, whose
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// failure is the one the caller sees.
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const pwshError = Object.assign(new Error('pwsh failed'), { code: 7 })
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const commandError = Object.assign(new Error('powershell failed'), { code: 7 })
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execFileMock.mockImplementationOnce((_command, _args, _options, callback) => {
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callback(pwshError, '', 'no WinForms')
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})
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execFileMock.mockImplementationOnce((_command, _args, _options, callback) => {
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callback(commandError, 'partial output', 'failure details')
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})
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await expect(pickNativeDirectory(signal(), { platform: 'win32', pickWin32Dialog: noDialog })).rejects.toMatchObject({
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message: 'powershell failed', cause: commandError, code: 7,
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stdout: 'partial output', stderr: 'failure details',
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})
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expect(execFileMock.mock.calls.map(call => call[0])).toEqual(['pwsh.exe', 'pwsh.exe', 'powershell.exe'])
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})
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it('uses the current process platform when no platform override is supplied', async () => {
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// Deterministic on every host: the win32 tier answers from the dialog,
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// the POSIX tiers from the command runner.
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const run = vi.fn<DirectoryPickerRunner>(async () => ({ stdout: '/default/platform\n', stderr: '' }))
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const pickWin32Dialog = async (): Promise<string | null> => 'C:\\default\\platform'
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const expected = process.platform === 'win32' ? 'C:\\default\\platform' : '/default/platform'
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await expect(pickNativeDirectory(signal(), { run, pickWin32Dialog })).resolves.toBe(expected)
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})
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it('uses Zenity on Linux and falls back to KDialog only when Zenity is missing', async () => {
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const run = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure('ENOENT'))
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.mockResolvedValueOnce({ stdout: '/home/test/project\n', stderr: '' })
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run })).resolves.toBe('/home/test/project')
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expect(run.mock.calls.map(call => call[0])).toEqual(['zenity', 'kdialog'])
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const zenity = vi.fn<DirectoryPickerRunner>(async () => ({ stdout: '/home/test/direct\n', stderr: '' }))
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run: zenity }))
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.resolves.toBe('/home/test/direct')
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expect(zenity).toHaveBeenCalledOnce()
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})
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it('maps Linux cancellation to null and reports a missing desktop picker', async () => {
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const cancelled = vi.fn<DirectoryPickerRunner>(async () => { throw failure(1) })
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run: cancelled })).resolves.toBeNull()
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const missing = vi.fn<DirectoryPickerRunner>(async () => { throw failure('ENOENT') })
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run: missing }))
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.rejects.toThrow('install zenity or kdialog')
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const kdialogCancelled = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure('ENOENT'))
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.mockRejectedValueOnce(failure(1))
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run: kdialogCancelled }))
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.resolves.toBeNull()
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const zenityFailed = vi.fn<DirectoryPickerRunner>(async () => { throw failure(2) })
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run: zenityFailed }))
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.rejects.toThrow('command failed')
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const kdialogFailed = vi.fn<DirectoryPickerRunner>()
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.mockRejectedValueOnce(failure('ENOENT'))
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.mockRejectedValueOnce(failure(2))
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await expect(pickNativeDirectory(signal(), { platform: 'linux', run: kdialogFailed }))
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.rejects.toThrow('command failed')
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})
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it('does not convert caller aborts into user cancellation', async () => {
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const abort = new AbortController()
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abort.abort(new Error('closed'))
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const run = vi.fn<DirectoryPickerRunner>(async () => { throw failure('ABORT_ERR') })
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await expect(pickNativeDirectory(abort.signal, { platform: 'linux', run })).rejects.toThrow('command failed')
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})
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it('reports unsupported platforms', async () => {
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await expect(pickNativeDirectory(signal(), { platform: 'aix' })).rejects.toThrow('unsupported on aix')
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})
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})
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